JPS62257869A - Printer - Google Patents

Abstract

PURPOSE:To realize an inexpensive small-type printer, by moving a single cam by a single drive source to selectively control conditions such as the conditions of a platen and a recording head, the conditions of a paper-feeding roller and a paper-pressing roller, the opening condition of the head and the angle of the head. CONSTITUTION:A pose detecting plate 26 is provided with a four-layer pattern in the radial direction, and the pattern is detected through four contacts to generate signals in three system. Based on the status of the signals, the position of a pose cam 23 can be detected. A recording paper is inserted under a reset condition, and a printing button is pressed, whereby the pose cam 23 is rotated forward to set a paper-feeding condition. After feeding the paper further to a predetermined position, the pose cam 23 is further rotated to set a printing condition. When printing is finished under this condition, the pose cam 23 is reversely rotated to set the paper-feeding condition. The paper is returned by a distance by which it has been fed under the printing condition, and then the pose cam 23 is again rotated forward to set the printing condition. When printing in three colors is thus finished, the paper is discharged, and the pose cam 23 is further rotated reversely, thereby restoring the reset condition.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention involves selectively applying heat to a transfer material coated with heat-sensitive ink, conveying a recording paper while pressing it, and applying heat to a predetermined area of the recording paper. The present invention relates to a printing device that performs printing.

[Conventional technology]

Conventionally, in this type of printing device, the selection operation of the pressing state and separation state between the recording head and the printer, the selection operation of the pressing state and separation state of the paper feed roller and paper press roller, and furthermore, the selection operation of the pressing state and separation state of the recording head, Opening operations, etc., were controlled using separate power sources. As an example of the conventional example,
There is No. 59081.

[Problem that the invention seeks to solve]

The conventional technology requires a large number of power sources, which increases costs, and also limits the ability to miniaturize the device.

[Means for solving problems]

Therefore, in the present invention, in order to solve the above-mentioned problems, one cam is moved by one power source, and thereby the state of the platen and recording head, the state of the paper feed roller and paper presser roller, and the open state of the recording head can be changed. We decided to selectively control the angle and other conditions of the recording head.

[Effect]

One power source moves one cam that controls the vertical movement of the platen, the vertical movement of the paper holding roller, the opening operation of the recording head when replacing the transfer material, and the angle change wJ operation of the recording head. As a result, during printing, the platen and recording head are pressed, and the paper feed roller and paper presser roller are pressed.

Also, when feeding paper, the platen and recording head are kept separated,
Press the paper feed roller and paper press roller. Also,
When inserting paper, the platen, recording head, paper feed roller, and paper press roller are separated. Further, when replacing the transfer material, the recording head is wide open, and when refreshing the recording head, the pressing angle of the recording head is changed.Such operations are performed by selectively operating one cam.

〔Example〕

FIG. 1 shows the 15i! of the present invention! It is an overall perspective view of an example.

1 is a frame, 2 is a head frame*3 ID head swing frame, 4 is a recording head, and 5 is a head attachment. The head swing frame 3 is rotatably fixed on the head swing frame shaft 1-1 on the frame 1, and the head frame 2 is fixed on the head swing frame shaft 1-1 on the frame 1. It is rotatably fixed on a shaft 9.

A head lever 8 and a film lever 7 are rotatably attached to the head frame.The film lever has a film 1l (1, c7-110) and a film presser roller (not shown). is rotatably attached to the head lever 8. A recording head 4 is rotatably attached to the head lever 8, and a head attachment 5 and a head frame, which are integrally attached to the recording head, are attached to the head lever 8. The ink pad angle,
A refresh angle is installed to be determined. Reference numeral 11 denotes a refresh drive lever, which is rotatably housed on the head swing frame shaft 1-1, and is in a positional relationship such that its rotational movement can be transmitted to the refresh lever.

Reference numeral 12 denotes a platen cam, which can move the platen 22 up and down by moving in the direction of the arrow in the figure. 13 is a platen pinion, which is rotatably attached to the pinion shaft 1-3 on the frame 1, and 14 is a platen rack, which runs on the frame 1 in the direction of the arrow in the figure. It is operated by the Bose cam 25.

15 is a head release lever, and paper presser roller shaft 1
7, one part is engaged with the head lever shaft 8-1, and one part is engaged with the Bose cam 23. Reference numeral 16 denotes a paper presser release lever 69, which is fixed to the paper presser lever shaft 17 without play, and its follower portion 16-1 is engaged with the Bose cam 23.

Reference numeral 18, which is pulled downward by a spring on the frame 1, is a paper presser lever that moves integrally with the paper presser roller shaft. Reference numeral 19 is a paper presser roller, and its front, rear, left, and right positions are as follows. This is determined by the paper presser auxiliary lever 20.

The paper presser auxiliary lever 20 is attached to the paper presser roller shaft with a slight play. 23 is a pose cam, which is rotatably fixed on a Bose cam shaft 1-2 fixed on the frame.

Furthermore, the pose cam has six parts each having independent functions. 23-1 is a gear unit that receives and takes power from a power source ((motor) not shown); 023-2 is a gear unit that receives and takes power from a power source ((motor) not shown);
It is a cam part that connects with the refresh drive lever 11 and changes the head angle through the refresh lever 6.
3-s is a cam portion that engages with the head release lever 15 to release the head frame 2 upward;
25-4 engages with the paper presser release lever and operates the paper presser lever 16 in order to release the paper presser roller 19ft from the paper presser roller 21 or press the paper presser lever 19 against the paper presser roller 21. 0 is a cam for
Further, 23-5 is an intermittent gear portion for engaging the platen rack 14 and moving the platen 22 up and down.
-1, there is an inner cam that engages with a head swing frame pin 3-1 fixed on the head swing frame 3 to operate the head swing frame. 24 is a film magazine, and 25 is a film cassette, in which an ink film is rotatably held. The film cassette 25 can be easily stored in a film magazine, and the film magazine is fixed to the frame by force-width on the film magazine guide 1-4. Further, the fixed position is a position where the head can enter the space 25-1 of the film cassette. Reference numeral 26 is a pose detection plate.A pattern is formed on a Bakelite plate using a copper plate or the like.It warps in the radial direction to form four patterns, and this pattern is connected to four contacts (a pose detector (not shown)). By detecting the signals, five systems of signals are created9.
The position of the pause cam can be detected based on the signal state. 27 is a paper guide, 27-
1 is provided on the paper guide 27-1. This is the paper insertion slot.

Next, using the timing chart of this embodiment shown in FIG.
The operation of this embodiment will be explained. Further, FIG. 3 shows details of the pose detection plate 26 of this embodiment.
．． 2 and 5.4 are pose detection terminals p and 28-, respectively.
1 is the pause signal A.

28-2 outputs a pause signal B, and 28-3 outputs a pause signal C.

28-4 is a GND terminal. Further, as described above, patterns 26-1 are formed on the pause detector 26 using copper foil or the like, and these patterns are formed to correspond to the four terminals, respectively.

4 to 8 are side views of the present embodiment in a cassette exchange state, a reset state, a paper feeding state, a printing state, and a refresh island state, respectively. It is a roller body, and the film peeling roller 10, the film 4tll, and the t roller 29 are fixed together with the film lever with a certain degree of freedom. Further, 100 is an ink film, and 200 is a recording paper.

In Fig. 2, in the cassette exchange state, the pause signal B is
L', the pause signal C is in the H'' state, and the pause signal A has changed from II,l to 1H1.At this time, the head swing frame 3 is at the rear, and the head frame 2 is released upward. The paper presser roller is also located upward, and the platen is released downward.A side view at this time is shown in FIG. 4.In this state, the ink film 160 is moved in the direction of the arrow in the figure. From this state, where there are no obstacles, rotate the pause cam and stop at the position where the pause signal B changes from °L° to "H". This state is the reset state, and the head swing frame 3 moves forward. Move the head frame as the head release lever 15 moves.
It is set downward.

This state is shown in FIG. 5, and in this state, the paper insertion slot 27-
1, set the recording paper 200. When the pause cam 23 is further rotated from this state, the pause signal C becomes "Hl".
It changes from to °L'.

This state is the paper feeding state. In this state, the paper press roller 19 applies pressure to the paper feed roller 21 as the paper press release lever 16 operates. In this state, the recording paper 200 is sandwiched between the paper feed roller 21 and the paper pressing roller 19. This state is shown in FIG.

In this state, when the paper feed roller is rotated, the recording paper moves in synchronization with it. If the pause cam is further rotated in the normal direction in this state, the pause signal A changes from the °L' state to the °H" state.

This state is a printing state, and the platen 22 is pushed upward and a pressing force is applied to the recording head 4.

In this state, a pressing force is also applied to the film peeling roller 10 and the film pressing roller 29. In this state, the paper feed roller 21 is rotated to move the recording paper 200 in the direction of the arrow in the figure while controlling the current to flow selectively to the recording head, and the ink film is conveyed in the same direction. , a predetermined printed matter is obtained.

A side view of this state uf is shown in FIG.

When the Bose gum 23 is further rotated in the normal direction from this state, the pause signal B changes from °L to "Hl", which is the refresh state. Fig. 8 shows the state at this time. At this time, The head comes into contact with the platen in a standing state. This is because as the Bose cam 23 moves, the refresh drive lever 11 moves in the direction of arrow A in FIG. At this time, the reflexini repper moves to the position shown in Fig. 6, and the head angle changes accordingly.

Actual printing is performed as follows.

In this embodiment, a three-color ink film is used, and one print is performed three times.

[Print]

First, insert paper in the reset state and press the print button. Then, the pause cam 23 rotates forward and enters the paper feeding state, and after further feeding the recording paper 200 by a predetermined distance t''!!, the Bose cam 23 rotates further and enters the printing state.Printing ends in this state. Then, this time Bose Cam 2
3 is reversed and enters the paper feeding state.

Then, the recording paper is sent back again in the printing state, and the Bose cam 23 is rotated in the forward direction to return to the printing state. After completing three-color printing in this manner, the recording paper 200 is ejected, and the Bose cam 25 is reversed to return to the reset state.

[Cassette replacement]

The pause cam 23 is reversed to put the printer in a cassette exchange state.

〔refresh〕

This is the state for playing the recording head, and the pause cam 23
The printer is rotated in the normal direction to bring the printer into a refresh state, and the head is refreshed by feeding the polishing film along the same path as the ink film. When the process is finished, the pause cam 23 is reversed again to return to the reset state.

〔Effect of the invention〕

According to the present invention, the present invention eliminates the conventional problem of requiring a large number of power sources, which increases costs and increases the size of the device.
A compact printing device can be realized.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an overall image of one embodiment of the present invention. Figure 2 shows 15! of the present invention! Example timing chart. FIG. 3 is a detailed diagram of a timing detector according to an embodiment of the present invention. FIG. 4 is a side view showing the cassette exchange state of the present invention. FIG. 5 is a side view showing the reset state of the present invention. FIG. 6 is a side view showing the paper feeding state of the present invention. FIG. 7 is a side view showing the printing state of the present invention. FIG. 8 is a side surface tooth showing the glue-fresh state of the present invention. 1...Frame 2...Head frame 3...Head swing frame 4...Recording head 6...Refresh lever 7...Film lever 8...Head lever 10...Fi 7v Muha Peeling roller 12...Platen cam 15...Head release lever 16...Paper press release lever 18...Paper press lever 19...Paper press roller 21...Paper feed roller 22...Platen 23...Pause cam 24...Film magazine 25...Film cassette 26...Pause detection plate 29...Film holding roller 100...Ink film 200...Recording paper or more J-7 Fig. 3 4 Figure 29: Film ff, t roller 30: Ink feed J1. Figure 5 Figure 7 Figure 8

Claims (1)

[Scope of Claims] 1) A printing device that selectively applies heat to a transfer material coated with heat-sensitive ink, conveys the recording paper while pressing it, and performs predetermined printing on the recording paper. , has a recording head as a heat generating means, a platen as a pressing means, a paper feed roller and a paper press roller as the recording paper transport means, and the platen and the recording head can select a pressed state or a separated state. , and the paper feed roller and the paper presser roller can also be set in a pressed state or a separated state, and
A printing apparatus characterized in that each of the above states is controlled by one power source. 2) Printing according to claim 1, characterized in that when replacing the transfer material, the operation of widening the recording head is controlled by the power source so that the transfer material can be easily replaced. Device. 3) The printing apparatus according to claim 1, wherein the operation of changing the pressing angle of the recording head against the platen is controlled by the power source. 4) The printing device according to claim 1, wherein the power source operates only one cam. 5) The printing apparatus according to claim 2, wherein the power source operates only one cam. 6) The printing device according to claim 3, wherein the power source operates only one cam.